The New York-based musician posted a photo of the pair on Instagram with the caption: "NYE: take away, TV, pajamas".

It shows Ole holding the singer's head with the pair both looking relaxed.

The couple had been dating for two years and played together in band D.A.R.K - Dolores' latest band.

They were seen last year on nights out in Ireland smiling and holding hands after they first performed together in 2009.

The Cranberries last night led tributes to their "extraordinary" singer.

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The last known photo of the star posted on Twitter with the caption 'Bye bye Gio. We're off to Ireland'

Her bandmates tweeted: "We are devastated on the passing of our friend Dolores. She was an extraordinary talent and we feel very privileged to have been part of her life from 1989 when we started the Cranberries. The world has lost a true artist today. Noel, Mike and Fergal."

Other stars in the music industry including Duran Duran, Ronan Keating, Hozier and Kodaline also tweeted their respects.

Founding member of the Kinks, Dave Davies, took to Twitter to share a snap of himself with Dolores.

He wrote: “I’m really shocked that #DoloresORiordan has passed so suddenly.

“I was talking to her a couple weeks before Christmas she seemed happy and well – we even spoke about maybe writing some songs together – unbelievable god bless her.”

The star's publicist confirmed her tragic death saying: "Family members are devastated to hear the breaking news and have requested privacy at this very difficult time."

Record label boss Dan Waite said today the star was joking on the phone just hours before she was discovered dead.

The managing director of Eleven Seven Music said: "The news that my friend Dolores has passed deeply shocked me. I worked with the Cranberries at Universal Records and have kept in touch ever since.

"Dolores left me a voice message just after midnight last night stating how much she loved Bad Wolves' version of Zombie.

"She was looking forward to seeing me in the studio and recording vocals.

"She sounded full of life, was joking and excited to see me and my wife this week.

"The news of her passing is devastating and my thoughts are with Don her ex-husband, her children and her mother."

The band shot to international fame with their 1993 debut album "Everybody Else Is Doing It, So Why Can't We" and went on to sell over 40 million records worldwide.

Follow-up album "No Need to Argue" went to number one in Australia, France and Germany, and number 6 in the United States.

As well as playing with the band, Dolores also toured with D.A.R.K and appeared as a judge on RTE's The Voice of Ireland in 2o13 and 2014.

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The singer joined the top-selling band in the 1990s

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Dolores on her wedding day with Don Burton in 1994

She released two solo albums during the hiatus before the band reformed in 2009.

In 2017 The Cranberries announced a tour including dates in Europe, the UK, and the US.

However, in May 2017, they had to cancel the remainder of the European dates as a result of O'Riordan's health issues.

The official Cranberries website cited "medical reasons associated with a back problem" preventing her from performing.

But just before Christmas O'Riordan posted on Facebook saying she was "feeling good" and had done her "first bit of gigging in months", leading fans to believe she would soon be performing again.

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Dolores O'Riordan with her daughter Molly

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Dolores pictured with the Cranberries in 1999

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She started writing her own songs when just a child

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The Cranberries comeback tour was cancelled last year over concerns for Dolores health

The singer suffered from bi-polar disorder and was spared a criminal conviction after an air rage incident in 2014.

She told the Belfast Telegraph the same year that she suffered from a “terrible self-loathing” - admitting that she'd “tried to overdose” the previous year.

Dolores said: "It manifested itself in my behaviour and the pathologies I began to develop in my early adult life, such as my eating disorder, depression and eventually the breakdowns.”

Talking candidly about the suicide attempt, she added: "I tried to overdose last year... I suppose I am meant to stay here for the kids.”

In May 2017, the star also opened up about her singing career and depression in an interview with the Irish News.

"I’ve been singing since I was 5 years old,” she told the Irish News. “By the time I was 12, I was writing my own songs so, yeah, music has always been part of me.

"To be honest, I’ve never imagined doing anything else. I think at one time though, my mum, who’s deeply religious, might have had a notion of me becoming a nun!

“There have been times when I’ve struggled. The death of my father and mother-in-law was very hard.

"Looking back, I think depression, whatever the cause, is one of the worst things to go through. Then again, I’ve also had a lot of joy in my life, especially with my children. You get ups as well as downs. Sure isn’t that what life’s all about?”

The singer also spoke of her struggles to handle alcohol, admitting she had been prone to “hit the bottle”.

And in another interview she admitted she struggled to be around sleeping tablets “because if I have a few drinks I’ll take them”.

Music video for Zombie by Irish rock band The Cranberries

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She had been open about her battles with depression

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Singing with Italian star Zucchero

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The Irish president was among those paying tribute

In February 2016, O'Riordan said she would use "music, dancing and performing to improve her mental health" after avoiding a criminal conviction for assault at an airport.

She was ordered to pay £5,000 to charity for headbutting, kicking, hitting and spitting on police officers following an alleged air rage incident.

The singer had previously admitted three assaults and obstructing a garda after being taken off an Aer Lingus flight from New York's JFK to Ireland on November 10 2014.

Medical reports produced for the trial at Ennis District Court revealed she had been suffering from mania, mental illness and severely impaired judgement at the time of the incident, and that she remembered nothing about it.

Irish rock band Kodaline were among the first to pay tribute on social media, along with Brian McFadden and Ronan Keating.

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The Cranberries sold 40m records worldwide

Rex Features

Dolores suffered from bi-polar disorder

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She was married to Duran Duran's former tour manager Don Burton for 20 years

Irish President Michael D Higgins said her death will be "a big loss" to all those who support and follow Irish music.

In a statement, Mr Higgins said "Dolores O'Riordan and The Cranberries had an immense influence on rock and pop music in Ireland and internationally."

Canon Liam McNamara, who knew Ms O'Riordan and her family, said he was shocked to hear the news of her death.

Canon McNamara was a celebrant at her wedding at Holycross in 1994 and knew her growing up in Ballybricken.

A LINGERING LEGACY

Dolores wrote Linger in 1989 on joining the band - then called The Cranberry Saw Us - about being snubbed by a boy after her first kiss.

Years later, he wrote asking to meet but she didn't reply

Released in 1993, their first album was unsuccessful, as were singles Dreams and Linger.

But after heavy MTV promotion, in 1994 it made them one of only five acts to notch a No1 album with a re-entry

The band sold over 40,000,000 records worldwide, going multi-platinum in the UK and US, and in 1995 Rolling Stone magazine dubbed them "Ireland's biggest musical export since U2"

Zombie is about the two young boys killed in the IRA's 1993 Warrington bombing.

A few weeks after the song's release, the IRA declared a ceasefire.

While their albums were huge sellers, their two highest-charting singles in the UK charts - Salvation and Promises - reached only No13.

In 2014, Dolores appeared as a judge on the Irish version of The Voice.

She performed for Pope Benedict XVI three times: in 2001, 2002 and 2005

At one stage, she was one of the ten richest women in Ireland.

Duran Duran wrote on Twitter: "We are crushed to hear the news about the passing of Dolores O'Riordan. Our thoughts go out to her family at this terrible time.'"

She was married to Duran Duran's former tour manager Don Burton for 20 years but they split up in 2014.

The couple had three children together - son Taylor, 20, Molly Leigh, 16, and 12-year-old Dakota Rain.

A spokeswoman for London Hilton, on Park Lane, said: "It is with deep regret that we can confirm a guest sadly passed away at the hotel on Monday 15th January.

"We offer our sincere condolences to their family at this difficult time.

"Team members acted swiftly to alert the Metropolitan Police and we are cooperating fully with their investigation. All further enquiries should be directed to the police."

Music video for Dreams by Irish rock band The Cranberries

If you are affected by any of the issues raised in this article, please call the Samaritans on (free) 116123 or 020 7734 2800.